Langflow Langflow — CVE-2026-9205 (Critical)

Date Aug 5, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product Langflow · Langflow

CVE CVE-2026-9205

Critical vendor advisory CVE-2026-9205

Summary

IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.

Why it matters

This CVE carries a CRITICAL severity rating (CVSS 7.4) in Langflow Langflow. Patch or mitigate promptly. EPSS percentile: 11%.

Operator check

Review CVE-2026-9205 in your asset inventory. Apply patches per vendor guidance and verify Langflow is not exposed. CVSS score: 7.4. EPSS probability: 0.2%; percentile: 11%.

Sources

NVD — CVE-2026-9205 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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